Heat exchanger manifold

FIELD: heat exchange apparatus; chemical industry and power engineering.

SUBSTANCE: proposed manifold has body with distributor secured on it. Secured to non-magnetic body are magnetic coils; distributor consists of movable and rigidly secured screens made from magnetic material with porous medium placed in between them. Porous medium may be made from foamed plastic and at least 5 rows of elastic balls whose diameter exceeds pitch of screen; it may include at least four layers of ferrite particles at effective diameter equal to diameter of elastic balls.

EFFECT: possibility of performing control of flows in wide temperature range.

4 cl, 9 dwg

 

The invention relates to heat exchange apparatus and can be used in the chemical and energy industries.

It is known device [A.S. USSR №1483234, F 28 F 13/14]based on the martensitic transformation of the material and the change in flow area for the fluid. But this device is technically difficult to implement, especially for developed flow of liquid or gas in the pipeline a larger cross-section.

Known more perfect device closest to the technical nature of the claimed object, which eliminates these disadvantages. "Collector heat exchanger" [AS. the USSR №1276901, F 28 F 9/02, published 15.12.86. BI No. 46], comprising a housing and fixed therein a dispenser in the form of corners. The attachment point to the body parts are made in the form of a pair of rods mounted on opposite sides of the distributor and snabjennyh heating elements. The valves are made of heat-sensitive material, bimetal or from a material having a reverse martensitic transformation. For a given velocity profile in the case selected value disclosure bimetallic corners. By heating of the heating elements of the rod varies the magnitude of the disclosure corners, thereby, ensuring its functioning.

However, this device is quite slow, because the heating and cooling distribution n what can happen instantly. Further, it is extremely difficult getting the required consumable speeds in a wide range. In addition, in the process changing the temperature of the stream, which in some cases is undesirable factor (for example, when the chemical reaction, temperature-dependent).

The essence of the invention lies in the fact that the increase in performance or achievement over a short period of time, the proposed device is achieved by the structural features, including the management of the electromagnetic field. To change the braking stream is a particular strength of the magnetic interaction between oppositely magnetized nets, which have the required deformation of the porous medium. The absence of the proposed device, the heating elements does not introduce additional heat environment.

The invention is illustrated by drawings:

Figure 1 - cross section of a header, side view. Figure 2 - cross section of the manifold (top view). Figure 3 - the cut, the type of grids (top view on an enlarged scale). 4 is a fragment of the cross-section with a porous medium made of elastic balls, uncompressed (side view). 5 is a fragment of the cross-section with a porous medium made of elastic balls, in a compressed state (side view). 6 is a fragment of the cross section with porous the th environment, made of elastic beads and ferrite particles in an uncompressed initial condition (side view). Fig.7 - fragment cross-section with a porous medium made of elastic beads and ferrite particles in the working and in the compressed state (side view). Fig - fragment cross-section with a porous medium made of poroplast, uncompressed (side view). Fig.9 - fragment cross-section with a porous medium made of poroplast in compressed state (side view).

The device includes a housing 1 (Fig 1, 2) of a nonmagnetic material. On the body are magnetic coil 2 with a torn magnetic core 3 and fixed therein, the dispenser comprising getcotacarel and mobile grids 4, 5. The mobility of the grid 5 is limited by the stop 6, made in the form of a flange in the housing 1. Both grids 4, 5 made of magnetic material. Figure 3 shows a fragment of the used grids 4, 5 in an enlarged scale. Between the grids 4, 5 is a porous medium 7. Coil 2 are connected in series, so that when the supply current all the upper parts of cores 3 became unipolar. Instead of the grids 4, you can use a diaphragm made of a magnetic material, with holes, whose diameter is not more step grids 4, 5.

The proposed collector works as follows.

In dependent the tee from the current in the coils 2 namagnichivaemost grid 4 and 5 compress the porous media 7, which leads to the deceleration of the flow. Grid 4, 5 must provide rigidity to the maximum possible pressure can be deformed. Coil 2 cores 3 are mounted on the housing 1 so that for all possible displacements of the grid 5, getcotacarel the grid 4 has passed the maximum magnetization of the upper parts of the cores 3 and the movable grid 5 from the lower parts of the cores 3. For uniform magnetization use multiple coils with 2 cores 3, located at the same distance from each other. Figure 2 shows the location of four of the used coils with 2 cores 3.

Use as a porous medium elastic balls 8 illustrate, figure 4, 5. Clenching grids 4 and 5 (figure 5) deformation of the balls 8 and the passages between the balls is reduced, which leads to the deceleration of the flow in comparison with the state shown in figure 4. To prevent loss of beads through the bars bulbs come with larger diameter step of the grid. As was found in experiments on the study of hydrodynamics in a porous medium, for forming a flow greatest impact first 5 rows of beads at the beginning of the packing [Aerow ME, Todes O.M., Narinsky D.A. Apparatus with a stationary granular layer. - L.: Chemistry, 1979. - P.53]. Therefore, the proposed "Manifold heat exchanger is the number of rows of elastic balls shall not be less than 5.

To get rid of sticky elastic balls 8 in the grid cells 4, 5 is used adding ferrite particles 9 with an effective diameter equal to the diameter of the elastic balls 8 (6). In this case, when multiple inclusion under the action of the magnetic field of the ferrite particles 9 are attracted to nominativus the grids 4, 5, forming a "replacement grille", which eliminates the sticky elastic balls due to the fact that in "replacement grille" no hard cells. Grill drawn to her ferrite particles has the best tools, which increases the compression force of the elastic balls and leads to energy savings management. 7 shows a fragment of the section, when the porous medium is made of a mixture of ferrite particles and elastic balls, in working condition. To form an effective "replacement grille", the number of ferrite particles should form at least two layers each grid (a total of not less than four).

The work of the collector when used as a porous medium of poroplast 10 illustrate Fig and Fig.9. Clenching grids 4 and 5 (figure 9) permeability of poroplast reduced in comparison with the state shown in Fig that leads to the deceleration of the flow. In order for cellular plastic 10 does not remain in a compressed state after removing the current from the coils 2, it can attach the grid 4.

Economic the rd effect:

The Collector of the heat exchanger has a wider range of work, without making substantial changes in the flow temperature. He has great agility and speed adjustment, and the high Curie temperature of the materials used can be used for regulating flow in a wide range of operating temperatures. The use of the invention in negative feedback with electronic flow meters can be used as dispensers.

1. The collector heat exchanger, comprising a housing and fixed therein dispenser, characterized in that the non-magnetic body fixed magnetic coil, and the distributor consists of mobile and getcotacarel nets, made of magnetic material, between which is a porous medium.

2. The collector of the heat exchanger according to claim 1, characterized in that the porous medium is made of at least 5 rows of elastic spheres with a diameter greater than the grid spacing.

3. The collector of the heat exchanger according to claim 1, characterized in that the porous medium is made of poroplast.

4. The collector of the heat exchanger according to claim 1 or 2, characterized in that the porous medium further comprises at least four layers of ferrite particles with an effective diameter equal to the diameter of the elastic balls.



 

Same patents:

FIELD: heat power engineering.

SUBSTANCE: the inventions are intended for heating water and-or steam and may be used in heat power engineering. The boiler plant contains a cylindrical boiler having one course of gases and an internal cylindrical shielded furnace chamber, an air heater, controlled circuits of heating of a heat carrier and fuels, one and more rows of heat exchange pipes, a ring-shaped cylindrical sectional header and a contact economizer. The finned heat exchange pipes are made U-shaped or coiled and form in the end part of the furnace chamber a radiation-convective beam. At that the gas-tightness of the furnace chamber may be ensured either by heat exchange diaphragms connecting the heat exchange pipes or by a heat exchange cylindrical surface. The heat exchange diaphragms, as well as the heat exchange cylindrical surface, which is sealing the furnace chamber and the convective part of the boiler, are spread to the frontal collector. On the collector there are outlet branch-pipes for withdrawal of the heat carrier, from which it is simultaneously possible to take the heat-carrier of several parameters. The boiler plant is countercurrent in respect to a temperature pressure of the furnace chamber and has one and more supporting devices. The back butt of the furnace chamber serves a part of a heating surface of the air-heater together with a branch-pipe of the outlet of the combustion products. The boiler and its heat-exchange pipes are made with in an series heating of the heat-carrier at the speed of its movement in the heat-exchange pipes of 2.15 m\s. The ring-shaped finned boiler header has sections, which are formed by partitions both blank and perforated, one and more frontal covers, one and more pipe plates, on which the heat-exchange pipes of the boiler are fixed. A part of the partitions is made flat and a part of the partitions is made as a ring or a part of a ring. The external finned frontal side of a collector is a part of the heating surface of the air heater. Inventions ensure increased efficiency of the boiler gross load and expansion of its functionalities.

EFFECT: the inventions ensure increased efficiency of the boiler gross load and expansion of its functionalities.

20 cl, 27 dwg

FIELD: heat-power engineering; power engineering; chemical and oil industries.

SUBSTANCE: proposed chamber is provided with rods having section in form of rectangle; rods are mounted over entire perimeter of tube bank in parallel with tubes; vertices of adjacent faces directed towards each other form diffuser and contraction passages. Vertices of faces of adjacent rods directed towards each other may be rounded-off.

EFFECT: reduced hydraulic resistance and enhanced reliability.

2 cl, 3 dwg

FIELD: heat-power engineering; heat exchangers with mixing of heat-transfer agent flows at different temperatures.

SUBSTANCE: circular partition is provided with circular V-shaped box smoothly perforated over perimeter and located above holes of heat-transfer agent inlet branch pipes; vertex of V-shaped box is rigidly connected with circular partition and end faces of box are tightly connected with inner surface of body and outer surface of casing.

EFFECT: reduced hydraulic resistance at simultaneous reduction of usage of metal.

5 cl, 4 dwg

FIELD: heat-exchange apparatus; liquid-to-liquid heat exchangers.

SUBSTANCE: collector chamber of shell-and-tube heat exchanger adjoining the tube sheet of tube bank includes partitions dividing it into supply and discharge compartments; they have U-shaped profile with strip located between its runs; it is made from elastic material; one end of strip is secured on tube sheet and second end is bent at 180 deg. on side of supply compartment.

EFFECT: enhanced operational reliability.

Regenerative cooler // 2142608
The invention relates to refrigeration, and more particularly to regenerative coolers, and in the particular case of the coolers used in such systems in which the refrigerant is air, and the cooled medium - oil

The invention relates to a power system and can be used in steam generators

FIELD: heat-exchange apparatus; liquid-to-liquid heat exchangers.

SUBSTANCE: collector chamber of shell-and-tube heat exchanger adjoining the tube sheet of tube bank includes partitions dividing it into supply and discharge compartments; they have U-shaped profile with strip located between its runs; it is made from elastic material; one end of strip is secured on tube sheet and second end is bent at 180 deg. on side of supply compartment.

EFFECT: enhanced operational reliability.

FIELD: heat-power engineering; heat exchangers with mixing of heat-transfer agent flows at different temperatures.

SUBSTANCE: circular partition is provided with circular V-shaped box smoothly perforated over perimeter and located above holes of heat-transfer agent inlet branch pipes; vertex of V-shaped box is rigidly connected with circular partition and end faces of box are tightly connected with inner surface of body and outer surface of casing.

EFFECT: reduced hydraulic resistance at simultaneous reduction of usage of metal.

5 cl, 4 dwg

FIELD: heat-power engineering; power engineering; chemical and oil industries.

SUBSTANCE: proposed chamber is provided with rods having section in form of rectangle; rods are mounted over entire perimeter of tube bank in parallel with tubes; vertices of adjacent faces directed towards each other form diffuser and contraction passages. Vertices of faces of adjacent rods directed towards each other may be rounded-off.

EFFECT: reduced hydraulic resistance and enhanced reliability.

2 cl, 3 dwg

FIELD: heat power engineering.

SUBSTANCE: the inventions are intended for heating water and-or steam and may be used in heat power engineering. The boiler plant contains a cylindrical boiler having one course of gases and an internal cylindrical shielded furnace chamber, an air heater, controlled circuits of heating of a heat carrier and fuels, one and more rows of heat exchange pipes, a ring-shaped cylindrical sectional header and a contact economizer. The finned heat exchange pipes are made U-shaped or coiled and form in the end part of the furnace chamber a radiation-convective beam. At that the gas-tightness of the furnace chamber may be ensured either by heat exchange diaphragms connecting the heat exchange pipes or by a heat exchange cylindrical surface. The heat exchange diaphragms, as well as the heat exchange cylindrical surface, which is sealing the furnace chamber and the convective part of the boiler, are spread to the frontal collector. On the collector there are outlet branch-pipes for withdrawal of the heat carrier, from which it is simultaneously possible to take the heat-carrier of several parameters. The boiler plant is countercurrent in respect to a temperature pressure of the furnace chamber and has one and more supporting devices. The back butt of the furnace chamber serves a part of a heating surface of the air-heater together with a branch-pipe of the outlet of the combustion products. The boiler and its heat-exchange pipes are made with in an series heating of the heat-carrier at the speed of its movement in the heat-exchange pipes of 2.15 m\s. The ring-shaped finned boiler header has sections, which are formed by partitions both blank and perforated, one and more frontal covers, one and more pipe plates, on which the heat-exchange pipes of the boiler are fixed. A part of the partitions is made flat and a part of the partitions is made as a ring or a part of a ring. The external finned frontal side of a collector is a part of the heating surface of the air heater. Inventions ensure increased efficiency of the boiler gross load and expansion of its functionalities.

EFFECT: the inventions ensure increased efficiency of the boiler gross load and expansion of its functionalities.

20 cl, 27 dwg

FIELD: heat exchange apparatus; chemical industry and power engineering.

SUBSTANCE: proposed manifold has body with distributor secured on it. Secured to non-magnetic body are magnetic coils; distributor consists of movable and rigidly secured screens made from magnetic material with porous medium placed in between them. Porous medium may be made from foamed plastic and at least 5 rows of elastic balls whose diameter exceeds pitch of screen; it may include at least four layers of ferrite particles at effective diameter equal to diameter of elastic balls.

EFFECT: possibility of performing control of flows in wide temperature range.

4 cl, 9 dwg

FIELD: power engineering, in particular, engineering of collectors for devices for utilization of gases exhausted by apparatuses primarily used for heating air by combustion products, coming from compressor of gas-turbine plant of gas flow apparatus at compressor stations of main gas pipelines.

SUBSTANCE: air injection or drainage collector of heat exchange block of heat-exchange apparatus like regenerative air heater is made in form of cylindrical ring with opening, in which additional pipe board is welded, while projection on end of pipe board of curvilinear portion of ring, forming an end of opening, is positioned within limits of thickness of pipe board, connection of ring to pipe board in plane of ring cross-section is made within angular range γ=28°-75°, and relation of projection area on aforementioned plane of curvilinear ring portion, forming an end of opening, to projection area on this plane of appropriate end of pipe board, is 0,048-0,172.

EFFECT: decreased mass of construction, high manufacturability of same, possibly lower laboriousness of manufacture, high durability of injection and drainage collector and reliability of its operation due to higher rigidity of construction.

5 cl, 4 dwg

FIELD: power engineering, in particular, heat exchange devices, primarily, air-based gas cooling apparatuses.

SUBSTANCE: device is made in form of reservoir working under pressure, including cylindrical body with end portions of two-side curvature, central branch pipe for connection to gas main and branch pipes for connecting to chambers for inlet or outlet of gas of heat-exchange sections of air gas cooling apparatus, while cylindrical body is made of technological sections, central one of which is made primarily in form of unified technological element with central branch pipe, and branch pipes for connection to chambers for inlet and outlet of gas of heat exchange sections of air gas cooling apparatus are mainly symmetrically positioned on both sides from central technological section and number of these branch pipes on each side ranges from 2 to 8, while the area of cross-section in light of central branch pipe is 0,7-1,0 of area of cross-section in light of cylindrical portion of body of collector fro injection or drainage of gas, and total area of cross section in light of branch pipes for connection to chamber for inlet or outlet of gas of each heat-exchange section of air-based gas cooling apparatus is 0,37-0,62 of area of cross-section in light of cylindrical portion of body of collector for injection or drainage of gas.

EFFECT: decreased metal cost of gas injection or drainage collector and higher manufacturability of its construction, and also decreased hydraulic losses in collector for injection or drainage of gas.

3 dwg, 7 cl

FIELD: power engineering, particularly gas cooling plant components.

SUBSTANCE: gas inlet or outlet chamber is made as a high-pressure tank and comprises side, upper, lower and end walls. Gas inlet or outlet chamber also comprises not less than two load-bearing partitions arranged between side walls and provided with through orifices. One chamber wall is made as tube plate with orifices defining grid structure and adapted to receive heat-exchanging tube ends. One chamber wall has orifices to receive pies to connect thereof with gas inlet or outlet manifold, which supplies gas to or discharges gas from the chamber. Orifices for connection pipe receiving, load-bearing partition orifices and tube plate orifices define communication system to connect gas air cooling plant with gas pipeline. The communication system has several stages with orifices formed so that orifice number at each stage successively changes in gas flow direction. For gas inlet chamber above number increases, for gas outlet chamber the number decreases.

EFFECT: possibility to equalize velocity field, reduced hydraulic hammer, which results in reduced power losses in pipeline conveying gas to be cooled and in increased thermal performance of air cooling plant as a whole or air cooling plant section, increased economy of plant production and operation.

3 dwg, 13 cl

FIELD: engineering of collectors for injection or drainage of gas for apparatuses for air-based gas cooling.

SUBSTANCE: device has bearing frame, on which not less than three cradle supports are mounted for supporting body of collector for injection or drainage of gas and for abutment of branch pipe connected thereto for connection to gas main, and no less than four portal supports for temporary technological holding by plane, rotation angle and position along collector for injection or drainage of gas of branch pipes with flanges for connection to chambers for inlet or outlet of gas of heat-exchange sections of air-based gas cooling apparatus adequately to position of contact surfaces of response flanges and mounting apertures in them in chamber for inlet or outlet of gas. At least two cradle supports are positioned with possible abutment of body of collector for injection or drainage of gas against them in accordance to suspension scheme, each one primarily between additional pair of portal supports, mounted below outmost and adjacent flanges of branch pipes for connection to chambers for inlet or outlet of gas. Each portal support is made with detachable beam, which is provided with device for temporary holding by plane and rotation angle of flange of appropriate branch pipe and for connection of it to body of collector for injection or drainage of gas in planned position.

EFFECT: simplified construction of building berth while providing for high precision of manufacturing of collector for drainage or injection of gas.

4 cl, 4 dwg

FIELD: heat and power engineering, namely tube walls of inlet or outlet chambers of apparatus for air cooling of gas or section of such apparatus.

SUBSTANCE: tube plate of chamber of gas inlet or gas outlet of heat exchange section of apparatus for air cooling of gas includes plate in the form of parallelepiped, mainly right-angled one. Said plate includes system of through openings for ends of heat exchange tubes of tube bundle. Said openings are arranged by rows along height of wall at pitch of their axes in row being in range (1.7 - 3.4) d; at pitch of rows along height of wall being in range (1.6 - 3.4)d where d - diameter of openings. Said openings are shifted in adjacent rows by value 0.35 -0.65 of pitch in row. Projection of surface area of wall carcass onto mean plane of tube wall exceeds by 4 - 12.5 times projection of total surface area of voids of wall on the same plane. Portion of continuous cross section is arranged along perimeter of tube wall for forming rigidity band of tube wall. Surface area of rigidity band consists 16.0 - 45.0% of tube wall surface area.

EFFECT: enhanced strength, lowered metal consumption of construction due to optimal parameters of tube wall.

10 cl, 3 dwg

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